Cape Hatteras is a major topographic feature on the continental shelf of the U.S. eastern seaboard that changes the dynamics of nearshore large ocean currents, including the Labrador Current and Gulf Stream. Cape Hatteras constricts shelf habitat and restricts the migratory corridors of highly migratory species through this area. Our objective was to describe the seasonal patterns of presence for three species—the Spiny Dogfish Squalus acanthias, Atlantic Sturgeon Acipenser oxyrinchus oxyrinchus, and Sandbar Shark Carcharhinus plumbeus—and analyze environmental conditions associated with fish presence near this feature. These species are managed under the Magnuson–Stevens Act, and two of them are also listed as species of concern under the Endangered Species Act. Transmitter detections from tagged fish recorded by the Cape Hatteras acoustic array, which was deployed just south of the cape, indicated that these species are present year‐round. The greatest number of detections occurred from November through April. This simple baseline of seasonal presence can provide insights for regional offshore development activities, which have the potential to affect movement patterns of migratory species through the Cape Hatteras constriction. Our results show the value of strategically placed acoustic arrays for observing fish habitat use and provide presence/absence data to enhance our understanding of species ecology and distribution.

中文翻译：

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哈特拉斯角（Cape Hatteras）有大西洋St鱼和鲨鱼的季节性存在，这是沿海迁徙的大型大陆架

哈特拉斯角是美国东部沿海大陆架上的主要地形特征，它改变了近岸大洋流（包括拉布拉多洋流和墨西哥湾流）的动力。哈特拉斯角限制了该大陆架的生境，并限制了高度迁徙物种的迁徙走廊。我们的目标是描述存在的季节性模式三个物种的白斑角鲨角鲨鲨，大西洋鲟尖吻鲟oxyrinchus和沙洲鲨真鲨plumbeus-并分析该特征附近与鱼类存在相关的环境条件。这些物种根据《马格努森-史蒂文斯法案》（Magnuson–Stevens Act）进行管理，其中两个物种也被《濒危物种法案》（Endangered Species Act）列为关注物种。哈特拉斯角（Cape Hatteras）声阵列记录的带标鱼的发射器检测结果显示，这些物种全年存在，这些分布在海角南部。从11月到4月，检测次数最多。这种简单的季节性存在基准可以为区域海上开发活动提供见解，这些活动可能会影响哈特拉斯角收缩带中迁徙物种的活动方式。